Hi Emily!
I'm at a much earlier stage of HRT than you, but I did see a still very faint shadow similar to those you describe. I think it is due to the fact that the feminine hormonal environment leads to a thinning of the skin (which is already especially thin) and to a certain degree of atrophy of the sebaceous glands (which are remarkably abundant in the eyelid). At most other places this is of no real consequence, but around the eyes these structures confer to the skin much of its opacity... So if they thin out, it becomes more translucid and structures underneath become visible: muscle, blood vessels... And I think that is the explanation for the blue shading... I was partially succesful at reducing it with a moisturizing cream (Diadermine Lift Intense Eye Care Cream) used twice a day, but in order to obtain the best cosmetic result I still need to use a minute amount of concealer (Max Factor Mastertouch All Day Concealer, color "Fair"). Hope this helps...
Hugs, Sarah
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